Bowling-alley-resurfacing device



Patente May 17, 1921.

L. N. LAREAU AND 0. JPRAENVI LLE.

BOWLENG ALLEY RESURFACING DEVICE APPLiCATION FILED JUNE 7, i920.

UNITED STATES LEO N. LABEAU, 0F

PATENT OFFFE.-

BOWLING-ALLEY-RESURFACING DEVICE.

Specification of Letters Patent.

Patented May 17, 1921.

Application filed June 7, 1920. Serial No. 386,984. a

Toall whom it may concern:

Be it known that we, LE0 N. LAREAU, a

citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, and OMER J. RAIN- VILLE, of South Attleboro, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Bowling-Alley-Resurfacing Devices, of which the followin is a specification.

This invention re ates to certain new and useful improvements in bowling alley resurfacing devices, and the primary object 'of the invention is to provide a device in which the abrading means is automatically moved step by step along the length of the alley during and simultaneously with rec1proc'a tion thereof and further by bodily'movement of the device on the alley.

The invention further aims to provide a prime mover which eifects both longitudinal and reciprocating movement of the abrading element or means.

The invention still further aims to provide a device of the type set forth which may be easily operated, and one of simple and economical construction, and further aims to provide a novel type of adjustment for abrading element so as to vary the pressure of the latter on the surface of the alley.

In the drawings:

Figure 1 is a perspective view of the invention and Fig. 2, is a fragmentary detail end elevation of the frame actuating means.

The invention embodies-a frame includ ing a pair of curved members 1 between which a vertical lever 2 is pivoted at 3. Cross bars 4 are secured to the end portions of the members 1, and maintain the latter in spaced relation as shown in the drawing. A seat 5 for the operator issuitably secured to the members 1. A pair of rods 6 are connected at their ends to the bars lc'and slidably support a head 7 formed with an. opening' through which the lower end of the lever 2 freely passes. Anti-friction rollers 8 are carried by the head 7 and are for engagement with the opposite sides of the lower end-of lever 2, so that when the lever is operated the head 7 will be reciprocated along the rods 6. Buffers in the form of co l springs 9 are mounted on the ends of the rods 6 so as to cushionthe movement of the head 7 upon reciprocation of the latter.

pair of shafts 10 are carried by the lower ends of the members 1 and have rollers 11 mounted thereon, the rollers being flanged at 12- so as to engage the inner sides of the gutters, thereby to prevent movement of the frame transversely of the alley. The rollers rotate on the alley and two of same have gear teeth 13 formed on their flanges 12,

the teeth 13 being engaged with reversible dogs or awls 14 which are pivoted on levers 15, the atter in turn being pivoted to the adgacent shaft 10.. Levers 15 are connected by llIlkS 16 to double-cranks 17, which latter are journaled on the crossbars & and are further connected by links 18 to the lever 2 as indicated at 19.

A platen 20 is provided with clips or clamps 21 which latter hold the sand paper 22 in position against the lower face of platen 20.

For the purpose of holding the platenwlth the sandpaper thereon against the surface of the bowling alley which is to be dressed or finished, spring rods 23 are em ployed which latter are affixed at their upper ends to the head 7 and cross each other and are secured at 24 to the platen 20, from which points 2 1 the rods are bent upwardly and secured to bars 25 which latter extend transversely of the platen and are adjusted vertically by means of screws and thumb nuts 26. The platen further has the lower ends of vertical rods 27 afiixed thereto, the upper ends of the rods passing through the head 7 and having cam members 28 pivoted thereto, so that when both of the cammembers are in the position shown by the one to the right of the drawing, the platen 20 will be raised up out of engagement with the surface of the alley, and when the cam-members are in a position shown to the left of the figure the platen will be lowered to-engage with the alleysurface.

In operation, lever 2 is oscillated, which causes reciprocation of the head 7 or the movement of the sand paper transversely of the "alley, and simultaneously a step by step movement in a selective direction lengthwise of the alley, the latter movement determined by proper setting of the pawls or dogs 14. The device also moves lengthwise of the alley by moving or riding thereon, the alley 7 thus being utilized as a track.

' abutting the inner sides of the Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a bowling alley resurfacer, a frame composed of two curved members spaced apart at their ends, cross bars connected to said spaced ends, rods connected to the cross bars, a head slidably carried by the rods, a

sand paper bearing platen carried by the head, said head having a slot and opposite anti-friction rollers adjacent the ends of the slot, a lever pivoted to the frame and having its lower end extending through the slot and engaging with the rollers, rollers journaled in the frame ends and having flanges 7 tters, gear teeth on certain of the flanges, pivoted levers carried by the frame and having pawls engaging the gear-teeth, double cranks journaled on the cross bars, links connecting the levers with the double cranks, and links connecting the double cranks with the first named lever. V

2. In a bowling alley resurfacer, a frame,

- a head reciprocable on the frame, a vertical lever pivoted to the frame and connected to the head for reciprocating same, rollers mounted on the frame and engaging the alley, and means operated by the lever for progressively actuating the frame by and upon each oscillation of the lever. 3. In a bowling alley resurfacer, a frame, a head reciprocating on the frame, means to reciprocate the head, means to progress v 'sively move the frame step by step lengthwise of the alley, and means to actuate the last named means by and through said means to reciprocate the head.

4. In a bowling alley resurfacer, a frame, a reciprocating head carried by the frame, a platen, rods connected tothe head and to the platen, means to raise and lower the-rods and thereby the platen relative to the head, spring devices between the head and the platen to vary the pressure of the platen on the alley, and means to adjust said devices.

5. In a bowling alley resurfacer, a frame, a head carried by the frame, a platen, spring rods secured at their upper ends to the head and having cross-bars secured to their'lower ends, said spring rods being bentadjacent their lower end and secured to the platen, and means to raise and lower the cross bars action of the spring rods on the platen.

(3. In a bowling alley resurfacer, a frame flanged rollers carried by the frame a having the flanges thereof formed to engage the inner sides of the gutters, and a sandpaper bearing device movably mounted on the frame.

7. In a bowling alley resurfacer, a frame, rollers carried by the frame, double cranks carried by the frame, gear-teeth associated with certain of the rollers, levers pivoted to the frame and having pawls engaging the gear-teeth, means connecting the levers with the double cranks, a prime mover, means connecting the prime mover with the double cranks, and a sand-paper bearing member movably mounted on the frame.

8. In a bowling alley resurfacer, a frame,

-rollers carried by the frame, and having actuate said member from the mover, and

means to actuate said frame moving means from the member. 4

10. In combination with asand paper hearing member and a frame carrying same, means to actuate the member, and means to move the frame step by. step connected to said actuating means.

11. In a bowling alley resurfacer, a frame, a movable head carried by the frame, an abrasivecarrying platen, means to raise and lower the platen relative to the head, and means for effecting .constant tension upon the platem; r I

12. In a bowling alley resurfacer, a frame, a movable head carried by the frame, an abrasive carrying platen, means to raise and lower the platen relative to the head, spring means to hold the-platen against the alley under tension, and means to efi'ect ad justment of the spring means.

13. In a bowling alley resurfacer, a frame, traction means for the frame to allow the latter to move longitudinally of the alley, abrasive means, means to mount the abrasive means to allow same to move across the alley and at right angles to the pathof travel of the frame, actuating means for the abrasive means, and means operated by the actuating means for actuating the frame.

14. In a bowling alley resurfacer, a frame, traction means for the frame to allow the latter to move longitudinally of the alley, abrasive means, means to mount the abrasive means to allow same to move across the ailey names to this specification in the presence and fat right angles to the path (5 travel of of two subscribing Witnesses.

the me actuating means or t e abrasive means, and means operated by the actuat LEO LAREAU' mg means for actuatmg the frame step-by- OMER J y I step upon each movement of the abrasive Witnesses: means across the alley. E. P. Tooauar,

In testimony whereof we havesigned eur J. A. 1; 

